Dr. Richard L. Nguyen, MD
- Medicare services, 2024
- 989
- Medicare patients, 2024
- 627
- Part D claims, 2024
- 10,128
- Industry payments
- $1,308
- Affiliated sites
- 1
- Practice address
- 14571 Magnolia Street Suite 107, Westminster, CA 92683
- Practice phone
- Call (714) 387-2778
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Magnolia Surgery Center - Westminster
Surgery Center - Medicare-Certified · Westminster, California
Find Dr. Nguyen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Richard L. Nguyen is an ophthalmologist in Westminster, California
Dr. Nguyen practices at Magnolia Surgery Center - Westminster in Westminster, California.
Dr. Nguyen's NPI, 1134178486, was assigned on May 6, 2006. Dr. Nguyen graduated from Loma Linda University School Of Medicine in 1992. Dr. Nguyen holds California license G77473.
- NPI
- 1134178486NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749441079
- NPI enumeration date
- May 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 387-2778
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard L. Nguyen practices at Magnolia Surgery Center - Westminster in Westminster, California
Dr. Nguyen's primary practice is Magnolia Surgery Center - Westminster, at 14571 Magnolia Street Suite 107, Westminster, CA 92683. The practice phone is (714) 387-2778.
- Magnolia Surgery Center - Westminster14571 Magnolia Street Suite 107, Westminster, CA 92683Phone(714) 387-2778
Source: Dmand AI Affiliation Data
Dr. Richard L. Nguyen is affiliated with 1 site of care
Dr. Nguyen's primary practice is Magnolia Surgery Center - Westminster in Westminster, California. Dr. Nguyen's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Richard L. Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Magnolia Surgery Center - Westminster | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard L. Nguyen is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Nguyen is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Nguyen is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Clinical focus
Dmand AI lists cataract, cataract surgery with lens implant, cold sores or genital herpes, glaucoma, glaucoma surgery and secondary membranaous cataract surgery among the conditions Dr. Nguyen treats.
Ophthalmologists near Dr. Nguyen
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Richard L. Nguyen billed Medicare for 989 services in 2024
CMS data shows 989 Medicare services from Dr. Nguyen across 5 procedure codes in 2024, for 627 Medicare patients. Medicare paid $82,742 for them.
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8282024: 91911%
- Imaging
- 2023: 422024: 5429%
- Surgery
- 2023: 272024: 1641%
Where Dr. Nguyen's Medicare services took place, 2024
- In an office97398%
- In a facility162%
Dr. Nguyen compared with the California median for ophthalmologists, 2024
- Dr. Nguyen
- California median
- Medicare services
- 989vs 1,0798% below
- Medicare patients
- 627vs 42149% above
- Part D claims
- 10,008vs 61816.2 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Nguyen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Nguyen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard L. Nguyen treated 627 Medicare patients in 2024, average age 76
CMS counts 627 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 286 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 96% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 70, with 57% women.
Dr. Nguyen's Medicare patients by age, 2024
Dr. Nguyen's Medicare patients by sex, 2024
- Women35957%
- Men26843%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes54%
- Arthritis50%
- Chronic kidney disease38%
- Osteoporosis30%
- Ischemic heart disease24%
- COPD17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nguyen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard L. Nguyen wrote 10,128 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 10,128 Medicare Part D claims for 1,073 patients. 72% of them were for generic drugs. CMS names the drug for 10,008 of them, across 42 drugs with 11 or more claims each, at $1,073,304 in total drug cost. In 2023, CMS named 8,962 claims across 40 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic7,302 claims72%
- Brand-name2,826 claims28%
Dr. Nguyen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nguyen's Part D claims, 2024
- Antibiotics1%107 of 10,128 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 8,9622024: 10,00812%
Drugs named by CMS: 42 in 2024, 40 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Richard L. Nguyen ranks in the 67th percentile for cataract surgery in Medicare
Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 63 procedures of cataract surgery by Dr. Nguyen, more than 67% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Nguyen ranks in Medicare procedure volume
- Cataract surgery
- 67th percentile63 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Richard L. Nguyen received $1,308 in industry payments from 2016 to 2025
CMS Open Payments shows 32 general payments to Dr. Nguyen from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Amgen Inc. paid the most, $302.
General payments to Dr. Nguyen by program year, 2016 to 2025
General payments to Dr. Nguyen by kind, 2016 to 2025
- Food and beverage$1,27197%
- Education$383%
Companies that paid Dr. Nguyen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard L. Nguyen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Nguyen.
Awards and honors for Dr. Nguyen
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Richard L. Nguyen graduated from Loma Linda University School Of Medicine
Dr. Nguyen graduated from Loma Linda University School Of Medicine in 1992. Dr. Nguyen is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Richard L. Nguyen accepts plans from 6 insurance carriers
Dr. Nguyen is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- CMS Medicare
Plan types Dr. Nguyen accepts, by number of carriers
- Medicare6
- PPO4
- HMO2
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Richard L. Nguyen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Richard L. Nguyen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Richard L. Nguyen's NPI number?
Dr. Richard L. Nguyen's NPI number is 1134178486. It was assigned on May 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard L. Nguyen?
Dr. Richard L. Nguyen is an ophthalmologist in Westminster, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Richard L. Nguyen practice?
Dr. Nguyen practices at 14571 Magnolia Street Suite 107, Westminster, CA 92683. Dr. Nguyen's primary practice is Magnolia Surgery Center - Westminster in Westminster, California.
What is Dr. Richard L. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (714) 387-2778.
What is Dr. Richard L. Nguyen's medical license number?
Dr. Nguyen holds California license G77473.
Does Dr. Richard L. Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 989 services in 2024, and Dr. Nguyen accepts Medicare assignment.
How many Medicare patients does Dr. Richard L. Nguyen see?
CMS counts 627 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 76.
Is Dr. Richard L. Nguyen board certified?
Yes. Dr. Nguyen is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Richard L. Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and ultrasound (76519).
Where did Dr. Richard L. Nguyen go to medical school?
Dr. Nguyen graduated from Loma Linda University School Of Medicine in 1992.
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What drugs does Dr. Richard L. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Timolol Maleate, Latanoprost and Brimonidine Tartrate.
Has Dr. Richard L. Nguyen received payments from drug or device companies?
CMS Open Payments shows $1,308 in general payments to Dr. Nguyen from 11 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Richard L. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Richard L. Nguyen accept?
Dr. Nguyen is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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